firstly you cant do geography at home because of the project, and you wouldnt be able to do all the chem and bio experiemts at home, There is a lot to learn in business and economics but one of them would be you best bet if you up for a challenge. Good luck.

Geography gets 10x harder in leaving cert level. For junior cert you just needed to know physical and short qs. Now i need to know Short Qs,Physical,Regional,elective,option essay and of course the project which is actually quite time consuming. It takes alot of work to achieve more than a C in geography so honestly i wouldn't recommend it.